54 West 21st Street

54 West 21st Street delivers a classic Midtown South office experience in the heart of the Flatiron District, combining prewar character with practical, modern functionality. Positioned just off Fifth Avenue between Sixth Avenue and Broadway, the building offers tenants a central location surrounded by Manhattan’s most active office, retail, and hospitality corridors. Its scale, efficient floor plates, and straightforward infrastructure make it a strong option for companies seeking flexibility without paying premium Class A pricing.

The property stands twelve stories tall and spans approximately one hundred fifty thousand square feet, offering a mix of full-floor and partial-floor opportunities suited to a wide range of office users. Tenants benefit from a recently upgraded lobby experience, consistent building operations, and a layout profile that supports both traditional and creative office configurations. The building’s structure and window lines provide strong natural light throughout most floors, which is a key advantage for Midtown South occupiers prioritizing workplace quality.

Located steps from Fifth Avenue, the building places tenants directly within one of Manhattan’s most desirable walkable submarkets. Madison Square Park and Union Square are both within a short walk, creating immediate access to green space, dining, and daily conveniences that improve employee experience and retention. This positioning also enhances client-facing business operations, offering a recognizable and accessible meeting point within the city.

From a leasing perspective, 54 West 21st Street is particularly well suited for small to mid-sized companies that want a Flatiron address without committing to the pricing structure of newer Class A towers. The building’s manageable floor sizes, practical layouts, and established infrastructure allow for efficient build-outs, whether a tenant is implementing a traditional office plan or a more open, collaborative environment.

Operationally, the property supports straightforward day-to-day use with twenty-four hour access, attended lobby presence, and elevator service designed for consistent tenant flow. The combination of accessibility, simplicity, and location makes it an effective choice for firms prioritizing usability over unnecessary complexity.

For tenants evaluating Midtown South office space, 54 West 21st Street represents a balanced option: strong location, functional infrastructure, and cost positioning that allows companies to secure a recognized Flatiron address while maintaining control over their occupancy strategy.

Technical Specifications

54 West 21st Street is a twelve-story office building located in the core of Manhattan’s Flatiron District, positioned between Fifth Avenue and Sixth Avenue along one of Midtown South’s most active commercial corridors. Originally constructed in nineteen ten, the property reflects classic prewar industrial architecture while incorporating practical upgrades that support modern office tenancy. The building provides a balanced combination of character, efficiency, and accessibility, making it a viable option for a wide range of office users.

The property occupies a mid-block position with strong frontage along West 21st Street, offering tenants a recognizable presence within a highly walkable and amenity-rich neighborhood. Its scale and configuration make it particularly attractive to small and mid-sized companies seeking efficient layouts in a central Manhattan location.

Core Building Metrics

Building Address: 54 West 21st Street, New York, NY 10010
Submarket: Flatiron District / Midtown South
Property Type: Office Building
Building Class: Class B
Ownership / Management: Institutional ownership with on-site property management presence
Year Built: 1910
Building Height: 12 stories
Total Building Size: Approximately 150,000 Square Feet
Typical Floor Plate: Approximately 10,000 Square Feet
Floor Plate Configuration: Efficient rectangular layouts suitable for both open plan and perimeter office build-outs
Available Space Range: Approximately 2,200 to 5,300 Square Feet (multi-floor availability depending on timing)

Building Systems & Infrastructure

Lobby Presence: Renovated lobby with attended reception and controlled access entry
Elevator Infrastructure: Passenger elevators supported by service elevator access for freight and deliveries
HVAC Systems: Tenant-controlled HVAC systems with distributed mechanical infrastructure
Electrical Capacity: Standard commercial office power suitable for general office and creative users
Telecom / Fiber: High-speed internet connectivity with multiple telecom providers servicing the building
Security: 24/7 building access with lobby attendant and monitored entry systems
Access: Key-controlled entry with after-hours accessibility for tenants

Architectural & Structural Highlights

54 West 21st Street maintains its prewar masonry façade and traditional loft-style proportions, offering a consistent window grid and solid structural framework. The building’s construction allows for flexible interior planning, supporting both collaborative open layouts and more segmented office configurations.

Interior spaces benefit from strong natural light due to oversized windows and relatively shallow floor depths. Ceiling heights are consistent with prewar office buildings, allowing for exposed ceiling treatments or finished office installations depending on tenant preference.

Workplace Environment

Office installations within 54 West 21st Street are designed around practicality and adaptability. The building’s manageable floor plates allow tenants to create efficient layouts without excessive loss factor, making it particularly attractive for firms that need usable space without unnecessary overhead.

Typical layouts support:

Open workstation environments
Perimeter private offices with natural light
Conference and meeting rooms
Pantry and breakout areas
Hybrid workplace configurations

The building’s size also allows companies to maintain a contained footprint without the complexity of large-scale multi-floor operations.

Tenant Advantages

From a leasing standpoint, 54 West 21st Street offers a straightforward and efficient occupancy profile within one of Manhattan’s most desirable submarkets. Tenants benefit from:

Central Flatiron location steps from Fifth Avenue
Efficient floor plates with minimal wasted space
Lower cost basis compared to nearby Class A buildings
Strong access to Union Square and Madison Square Park
Walkable access to dining, retail, and hospitality amenities
Flexible layout potential for a variety of business types

This positioning makes the building especially appealing to creative firms, professional services, technology companies, and boutique operators seeking a Midtown South presence without overcommitting on rent.

Operational Efficiency

The building’s infrastructure is designed to support consistent day-to-day operations without unnecessary complexity. Its size, systems, and layout efficiency reduce friction in tenant operations while allowing for straightforward build-outs and reconfigurations over time.

The combination of manageable floor sizes and reliable building systems makes it particularly well suited for tenants prioritizing usability, cost control, and location over high-end trophy building features.

Overall Positioning

54 West 21st Street stands as a reliable, well-located Midtown South office asset that delivers core fundamentals: location, efficiency, and flexibility. While not positioned as a luxury Class A tower, it provides the essential components most tenants actually need to operate effectively in Manhattan.

For companies evaluating Flatiron office space, the building represents a practical, well-balanced option that aligns with both immediate occupancy needs and longer-term growth strategies.

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Near By Transportation

54 West 21st Street is positioned in one of the most transit-rich pockets of Midtown South, giving tenants immediate access to multiple subway lines and regional connections within a few minutes’ walk. The building’s location between Fifth Avenue and Sixth Avenue places it directly between Union Square and the 23rd Street corridor, two of Manhattan’s most important transit zones.

23rd Street Subway Access

Within a short walk north and west of the property, tenants have access to multiple 23rd Street stations, including:

F and M trains along Sixth Avenue
R and W trains at Broadway and 23rd Street
1 train along Seventh Avenue

This network provides fast north-south movement through Midtown and Downtown, along with easy crosstown connectivity.

Union Square Transit Hub

Located just a few blocks south, the 14th Street–Union Square station offers one of the most comprehensive transit hubs in Manhattan:

4, 5, 6 subway lines
N, Q, R, W subway lines
L subway line

This hub significantly expands commuting flexibility for employees traveling from Brooklyn, Queens, Uptown Manhattan, and beyond.

Additional Nearby Lines

Tenants also benefit from proximity to:

6 train at 23rd Street and Park Avenue South
Multiple bus routes running along Fifth Avenue, Sixth Avenue, and Broadway corridors

Regional Connectivity

The building’s central Midtown South location allows efficient access to:

Penn Station via the 1 train or short crosstown connections
Grand Central Terminal via the 6 train
PATH trains through Union Square connections
Long Island Rail Road and Metro-North Railroad via quick subway transfers

Walkability & Commuter Experience

54 West 21st Street sits within a highly walkable corridor, allowing many employees to commute on foot from nearby neighborhoods such as:

Flatiron
Union Square
Gramercy
NoMad
Chelsea

The surrounding streets are dense with restaurants, cafes, fitness centers, and retail, making daily commuting and client visits straightforward and efficient.

Bicycle & Alternative Transit

The area also supports alternative commuting options, including:

Citi Bike stations throughout the immediate blocks
Dedicated bike lanes along Fifth Avenue and Broadway
Strong pedestrian infrastructure across Midtown South

This level of connectivity makes 54 West 21st Street a highly practical choice for tenants prioritizing ease of access, employee convenience, and multi-directional commuting options across New York City.

Notable Buildings in the Area

54 West 21st Street sits within the architectural and commercial center of the Flatiron District, surrounded by many of Midtown South’s most recognized office buildings and landmark properties. The neighborhood combines historic loft buildings, modernized boutique office assets, and institutional-grade headquarters towers, creating one of Manhattan’s most established office ecosystems.

Flatiron Building

Located only a few blocks east, the Flatiron Building remains the defining landmark of the district. Its global recognition gives the surrounding office corridor strong branding power and reinforces the prestige associated with Flatiron office addresses.

915 Broadway

One of the neighborhood’s most prominent office towers, 915 Broadway is a major prewar office property overlooking Madison Square Park and Union Square. Its scale and tenant roster reinforce the area’s appeal to technology, creative, and professional services firms.

902 Broadway

A historic loft-style office tower at Broadway and 21st Street known for its classic architecture and creative office identity. The building contributes heavily to the district’s traditional Midtown South office character.

11 Madison Avenue

A large-scale headquarters property directly adjacent to Madison Square Park. The building represents the institutional Class A side of the Flatiron and NoMad office market and has attracted major global tenants.

200 Fifth Avenue

One of Midtown South’s best-known office buildings, positioned directly across from Madison Square Park. The property blends large-scale floor plates with landmark architecture and strong tenant amenities.

41 Madison Avenue

A major office and showroom tower associated with design, furnishings, and trade industries. The building remains one of the area’s most important business addresses.

29 West 20th Street

A boutique Midtown South office property reflecting the neighborhood’s traditional loft conversion inventory. It represents the smaller-scale creative office environment that defines much of Flatiron leasing activity.

50 West 23rd Street

A larger office property near the Sixth Avenue corridor that helps connect Flatiron to Chelsea and NoMad. The building contributes to the broader Midtown South office ecosystem surrounding 54 West 21st Street.

One Madison Avenue

Recently redeveloped into a modern office tower adjacent to Madison Square Park, this property represents the continued institutional investment flowing into the Flatiron and NoMad office markets.

This surrounding collection of office buildings creates a highly desirable business environment where historic architecture, creative office culture, and modern corporate infrastructure exist within the same walkable district. For tenants, that translates into stronger branding, better employee experience, and long-term location relevance within one of Manhattan’s most established office submarkets.

Zip Code

10010